arrow-format/Tensor.fbs

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/// EXPERIMENTAL: Metadata for n-dimensional arrays, aka "tensors" or
/// "ndarrays". Arrow implementations in general are not required to implement
/// this type

include "Schema.fbs";

namespace org.apache.arrow.flatbuf;

/// ----------------------------------------------------------------------
/// Data structures for dense tensors

/// Shape data for a single axis in a tensor
table TensorDim {
  /// Length of dimension
  size: long;

  /// Name of the dimension, optional
  name: string;
}

table Tensor {
  /// The type of data contained in a value cell. Currently only fixed-width
  /// value types are supported, no strings or nested types
  type: Type (required);

  /// The dimensions of the tensor, optionally named
  shape: [TensorDim] (required);

  /// Non-negative byte offsets to advance one value cell along each dimension
  /// If omitted, default to row-major order (C-like).
  strides: [long];

  /// The location and size of the tensor's data
  data: Buffer (required);
}

root_type Tensor;